package com.example.lottery_system.common.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.concurrent.TimeUnit;

@Configuration
public class RedisUtil {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    private final static Logger logger = LoggerFactory.getLogger(RedisUtil.class);

    /**
     *  设置值
     * @param key
     * @param value
     * @return
     */
    public boolean set(String key, String value) {
        try {
            stringRedisTemplate.opsForValue().set(key, value);
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error, set({}, {})", key, value, e);
            return false;
        }
    }

    /**
     *  设置值（设置时间）
     * @param key
     * @param value
     * @param time 单位为秒/S
     * @return
     */
    public boolean set(String key, String value, Long time) {
        try {
            stringRedisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error, set({}, {}, {})", key, value, time, e);
            return false;
        }
    }

    /**
     * 获取值
     * @param key
     * @return
     */
    public String get(String key) {
        try {
            String value = stringRedisTemplate.opsForValue().get(key);
            return StringUtils.hasText(key) ? value : null;
        } catch (Exception e) {
            logger.error("RedisUtil error, get({})", key, e);
            return null;
        }
    }

    /**
     *  删除值
     * @param key
     * @return
     */
    public boolean del(String... key) {
        try {
            if(null != key && key.length > 0) {
                if(key.length == 1) {
                    stringRedisTemplate.delete(key[0]);
                } else {
                    stringRedisTemplate.delete((Collection<String>) CollectionUtils.arrayToList(key));
                }
            }
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error, del({})", key, e);
            return false;
        }
    }

    public boolean hasKey(String key) {
        try {
            return StringUtils.hasText(key) ? stringRedisTemplate.hasKey(key) : false;
        } catch (Exception e) {
            logger.error("RedisUtil error, hasKey({})", key, e);
            return false;
        }
    }
}
